Heating apparatus



J. RYCKMAN.

HEATING APPARATUS.

APPLICATION HLED APR.6, 191a.

1,338,965, Patented May 4, 1920;

Q m w ---cx frwev/on J06 fiycmmr 5/3 F/Iarneys JOHN BYCKMAN, OFMINNEAPOLIS, MINNESOTA.

HEATING APPARATUS.

Specification of Letters Patent.

Patented May 4, 1920.

Application filed April 6, 1918 Serial No. 221L081.

To all whom it may concern:

Be it known that I, JoHN RYcKMAN, a citizen of the United Statesresiding at Minneapolis, in the county of l lennepin and State ofMinnesota, have invented certain new and useful Improvements in HeatingApparatus, of which the following is a specification.

My invention relates to heating apparatus and the object is to provide'a system in which a circulation of hot water or steam for heatingpurposes may be obtained by-the combustion of fuel oil in an efficientand economical manner.

The full objects and advantages of my invention will. appear inconnection with the detailed description thereof and are-particularlypointed out in the claims.

Referring to the drawings which illustrate the application of myinvention in one form,-

Figure 1 is a diagrammatic view, largely in vertical section, of myapparatus. Fig. 2

is a view in section on line 22 of Fi 1.

Referring to the drawings, 10 in( icates the water jacket of the boilerhaving the inner cylindrical wall 12 and the outer cylindrical wall 14,these two walls being joined at their ends to form an annular chamberfor containing .water. Leading from the top of the water jacket thusformed is the outlet pipe 16 while a return pipe 18 enters the bottom ofthe water jacket. Inclosing thewater jacket is the drum 20, preferablyof sheet metal, from the upper end of which is led the escape flue 22for spent ases. The rear end of the drum extends yond the water jacketto form a passageway 24 and the drum is positioned eccentrically aroundthe water jacket with their lower surfaces in contact so as to form thepassageway 26 at the top. The boiler formed by this constructionmay besupported on suitable legs 28 connected by cross bars 30. The front endof the drum fits closely upon the front end of the water jacket and isprovided with a clean out door 32 above the water jacket and the opening34 leadin to the space within the inner wall 12 of t e water jacket. Atube 36 having a burner tip 38 extends through the opening 34 for ashort distance and beyond the burner tip is a deflector 40. The pipe 36leads from a fuel oil tank 42, and

within the tank the pipe is bent to form two vertical portions 44 and 46connected by a short bend at their lower ends. The portion 44 is closedat its top and at a short distance below the top is provided with anopening 48 for entrance of the compressed alr, while in the bottom ofthe portion 46 is a small opening 50 for entrance of fuel oil. The valve52 controls theflow through the pipe 36. The tank 42 is provided with acook 54 which is ordinarily closed but which may be opened to determinethe upper level of the fuel oil in the tank when the oil is supplied byopening the valve 56 in the supply ipe 58. The space in the tank 42above t e oil level is supplied with compressed air from a storage tank60 connected with the top of tank 42 by a pipe 62 provided with an airvregulator 64 and a pressure gage 66. The storage tank is connected by apipe 68 with an air compressor 70. The ipe 68 is provided with apressure gage 2 and with an automatic electric regulator 74 of wellknown construction. An electric motor 76 is geared to the air compressorand a supply of current to the motor is switched on and off by theregulator according to the air pressure in the pipe 68.

he advantages and operation of my invention will be apparent from theforegoing description. A substantially constant air pressure ismaintainedv in the compressed air storage tank and pressure therefromreduced, as desired, by the air regulator 64 is transmitted to the spaceat the top of the fuel oil reservoir. Notwithstandin slight fluctuationsin the air pressure in t e storage tank, it will be apparent that aconstant pressure will be maintained in the tank 14. Compressed airenters the opening 48 and flows through the pipe 36 to the burner in itspassage drawing in fuel oil in small uantities through the small opening50. ir and oil are delivered from the burner tip in the form of a finemist or spray which burns with intense heat in the space within theinner wall of the water jacket, the buming gases being deflected againstthe inner wall 12 by the deflector and passing back over th outer wall14 to the escape flue 22. The wager in the water jacket will be quicklyheated and cause a circulation of hot water out through the pipe 16 andreturning on said air tank,a burner and means for delivering oil and airfrom said oil tank throughsaid burner in the form of mist.

2. A heating apparatus comprising a burner, a fuel oil tank, acompressed ir tank, a pi e connecting said air tank to t e top of saioil tank, a U-sha ed pipe in said -oil tank, one of the brane es of saidU- shaped pipe being closed at its top except" for a small air inletopening, the other branch of said-U-shaped pipe having a small oil'inletnear its bottom and having its upper end connected to said burner fordelivering oil and air from said oil tank through said burner in theform of mist.

In testimony whereof I hereunto aflix my signature.

JOHN RYOKMAN.

